Butterworth, Pulau Pinang, Malaysia Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
September Air Quality Analysis
Butterworth, Pulau Pinang, Malaysia
2021
2022
2023
2024
2025
AQI
.
Days
AQI Trends: Highest and Lowest
Highest AQI recorded on
27th Sep 2025
67AQILowest AQI recorded on
10th Sep 2021
0AQISame Day Analysis (29th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 45 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report
Day & Night AQI Trend: 29th Sep - 30th Sep 2025
Butterworth, Pulau Pinang, Malaysia
AQI
Day
Night
.
7 AM29th Sep 2025
7 PM
6 AM30th Sep 2025
Day time
Avg. Highest Time
8AM29th Sep
39AQI
Avg. Lowest Time
10AM29th Sep
15AQI
Night time
Avg. Highest Time
1AM30th Sep
50AQI
Avg. Lowest Time
8PM29th Sep
23AQI
In the last 24 hours,
Butterworth's AQI reached its highest point of 50 at 1 AM during the Night, while the lowest point, 15, was recorded at 10 AM during the Day between 29th Sep and 30th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Butterworth, Pulau Pinang, Malaysia
AugSep
31st - 01st01st - 02nd02nd - 03rd03rd - 04th04th - 05th05th - 06th06th - 07th07th - 08th08th - 09th09th - 10th10th - 11th11th - 12th12th - 13th13th - 14th14th - 15th15th - 16th16th - 17th17th - 18th18th - 19th19th - 20th20th - 21st21st - 22nd22nd - 23rd23rd - 24th24th - 25th25th - 26th26th - 27th27th - 28th28th - 29th29th - 30th30th
Day
Night
31st Aug 2025567 AMAQI
31st Aug 2025518 AMAQI
31st Aug 2025549 AMAQI
31st Aug 20255310 AMAQI
31st Aug 20253911 AMAQI
31st Aug 20255012 PMAQI
31st Aug 2025521 PMAQI
31st Aug 2025482 PMAQI
31st Aug 2025483 PMAQI
31st Aug 2025504 PMAQI
31st Aug 2025505 PMAQI
31st Aug 2025556 PMAQI
31st Aug 2025517 PMAQI
31st Aug 2025588 PMAQI
31st Aug 2025639 PMAQI
31st Aug 20256410 PMAQI
31st Aug 20256611 PMAQI
1st Sep 20256012 AMAQI
1st Sep 2025581 AMAQI
1st Sep 2025592 AMAQI
1st Sep 2025563 AMAQI
1st Sep 2025554 AMAQI
1st Sep 2025555 AMAQI
1st Sep 2025566 AMAQI
28°C25/31°C
1st Sep 2025567 AMAQI
1st Sep 2025538 AMAQI
1st Sep 2025469 AMAQI
1st Sep 20255010 AMAQI
1st Sep 20255211 AMAQI
1st Sep 20255812 PMAQI
1st Sep 2025481 PMAQI
1st Sep 2025502 PMAQI
1st Sep 2025503 PMAQI
1st Sep 2025494 PMAQI
1st Sep 2025545 PMAQI
1st Sep 2025406 PMAQI
1st Sep 2025547 PMAQI
1st Sep 2025548 PMAQI
1st Sep 2025569 PMAQI
1st Sep 20255510 PMAQI
1st Sep 20255511 PMAQI
2nd Sep 20255512 AMAQI
2nd Sep 2025541 AMAQI
2nd Sep 2025552 AMAQI
2nd Sep 2025563 AMAQI
2nd Sep 2025554 AMAQI
2nd Sep 2025555 AMAQI
2nd Sep 2025566 AMAQI
28°C26/31°C
2nd Sep 2025567 AMAQI
2nd Sep 2025508 AMAQI
2nd Sep 2025549 AMAQI
2nd Sep 20255810 AMAQI
2nd Sep 20255011 AMAQI
2nd Sep 20254212 PMAQI
2nd Sep 2025491 PMAQI
2nd Sep 2025452 PMAQI
2nd Sep 2025463 PMAQI
2nd Sep 2025434 PMAQI
2nd Sep 2025415 PMAQI
2nd Sep 2025426 PMAQI
2nd Sep 2025507 PMAQI
2nd Sep 2025528 PMAQI
2nd Sep 2025559 PMAQI
2nd Sep 20255610 PMAQI
2nd Sep 20255811 PMAQI
3rd Sep 20255712 AMAQI
3rd Sep 2025561 AMAQI
3rd Sep 2025562 AMAQI
3rd Sep 2025543 AMAQI
3rd Sep 2025544 AMAQI
3rd Sep 2025555 AMAQI
3rd Sep 2025546 AMAQI
27°C26/30°C
3rd Sep 2025547 AMAQI
3rd Sep 2025488 AMAQI
3rd Sep 2025489 AMAQI
3rd Sep 20255110 AMAQI
3rd Sep 20255411 AMAQI
3rd Sep 20254512 PMAQI
3rd Sep 2025481 PMAQI
3rd Sep 2025342 PMAQI
3rd Sep 2025613 PMAQI
3rd Sep 2025434 PMAQI
3rd Sep 2025475 PMAQI
3rd Sep 2025446 PMAQI
3rd Sep 2025477 PMAQI
3rd Sep 2025518 PMAQI
3rd Sep 2025539 PMAQI
3rd Sep 20255210 PMAQI
3rd Sep 20255411 PMAQI
4th Sep 20255512 AMAQI
4th Sep 2025541 AMAQI
4th Sep 2025552 AMAQI
4th Sep 2025543 AMAQI
4th Sep 2025534 AMAQI
4th Sep 2025545 AMAQI
4th Sep 2025536 AMAQI
26°C25/28°C
4th Sep 2025547 AMAQI
4th Sep 2025548 AMAQI
4th Sep 2025569 AMAQI
4th Sep 20255710 AMAQI
4th Sep 20254811 AMAQI
4th Sep 20254612 PMAQI
4th Sep 2025541 PMAQI
4th Sep 2025462 PMAQI
4th Sep 2025433 PMAQI
4th Sep 2025374 PMAQI
4th Sep 2025335 PMAQI
4th Sep 2025866 PMAQI
4th Sep 2025457 PMAQI
4th Sep 2025218 PMAQI
4th Sep 2025199 PMAQI
4th Sep 20252610 PMAQI
4th Sep 20253011 PMAQI
5th Sep 20255012 AMAQI
5th Sep 2025531 AMAQI
5th Sep 2025542 AMAQI
5th Sep 2025543 AMAQI
5th Sep 2025544 AMAQI
5th Sep 2025545 AMAQI
5th Sep 2025546 AMAQI
26°C25/29°C
5th Sep 2025547 AMAQI
5th Sep 2025338 AMAQI
5th Sep 2025389 AMAQI
5th Sep 20255410 AMAQI
5th Sep 20254211 AMAQI
5th Sep 20254212 PMAQI
5th Sep 2025491 PMAQI
5th Sep 2025342 PMAQI
5th Sep 2025283 PMAQI
5th Sep 2025334 PMAQI
5th Sep 2025255 PMAQI
5th Sep 2025326 PMAQI
5th Sep 2025397 PMAQI
5th Sep 2025488 PMAQI
5th Sep 2025539 PMAQI
5th Sep 20255810 PMAQI
5th Sep 20255911 PMAQI
6th Sep 20256112 AMAQI
6th Sep 2025471 AMAQI
6th Sep 2025412 AMAQI
6th Sep 2025493 AMAQI
6th Sep 2025504 AMAQI
6th Sep 2025495 AMAQI
6th Sep 2025486 AMAQI
27°C25/30°C
6th Sep 2025507 AMAQI
6th Sep 2025648 AMAQI
6th Sep 2025699 AMAQI
6th Sep 20256310 AMAQI
6th Sep 20255211 AMAQI
6th Sep 20255012 PMAQI
6th Sep 2025461 PMAQI
6th Sep 2025442 PMAQI
6th Sep 2025373 PMAQI
6th Sep 2025434 PMAQI
6th Sep 2025455 PMAQI
6th Sep 2025446 PMAQI
6th Sep 2025547 PMAQI
6th Sep 2025538 PMAQI
6th Sep 2025589 PMAQI
6th Sep 20255910 PMAQI
6th Sep 20256111 PMAQI
7th Sep 20256412 AMAQI
7th Sep 2025511 AMAQI
7th Sep 2025502 AMAQI
7th Sep 2025523 AMAQI
7th Sep 2025524 AMAQI
7th Sep 2025525 AMAQI
7th Sep 2025526 AMAQI
27°C25/30°C
7th Sep 2025527 AMAQI
7th Sep 2025388 AMAQI
7th Sep 2025419 AMAQI
7th Sep 20254210 AMAQI
7th Sep 20255811 AMAQI
7th Sep 20255812 PMAQI
7th Sep 2025461 PMAQI
7th Sep 2025522 PMAQI
7th Sep 2025483 PMAQI
7th Sep 2025424 PMAQI
7th Sep 2025515 PMAQI
7th Sep 2025516 PMAQI
7th Sep 2025477 PMAQI
7th Sep 2025548 PMAQI
7th Sep 2025589 PMAQI
7th Sep 20255710 PMAQI
7th Sep 20255711 PMAQI
8th Sep 20255812 AMAQI
8th Sep 2025521 AMAQI
8th Sep 2025522 AMAQI
8th Sep 2025523 AMAQI
8th Sep 2025524 AMAQI
8th Sep 2025525 AMAQI
8th Sep 2025526 AMAQI
27°C26/30°C
8th Sep 2025527 AMAQI
8th Sep 2025678 AMAQI
8th Sep 2025669 AMAQI
8th Sep 20256510 AMAQI
8th Sep 20255811 AMAQI
8th Sep 20256612 PMAQI
8th Sep 2025611 PMAQI
8th Sep 2025542 PMAQI
8th Sep 2025573 PMAQI
8th Sep 2025574 PMAQI
8th Sep 2025545 PMAQI
8th Sep 2025656 PMAQI
8th Sep 2025567 PMAQI
8th Sep 2025598 PMAQI
8th Sep 2025579 PMAQI
8th Sep 20255810 PMAQI
8th Sep 20255611 PMAQI
9th Sep 20255412 AMAQI
9th Sep 2025531 AMAQI
9th Sep 2025532 AMAQI
9th Sep 2025533 AMAQI
9th Sep 2025544 AMAQI
9th Sep 2025535 AMAQI
9th Sep 2025546 AMAQI
27°C25/30°C
9th Sep 2025547 AMAQI
9th Sep 2025448 AMAQI
9th Sep 2025449 AMAQI
9th Sep 20254810 AMAQI
9th Sep 20254611 AMAQI
9th Sep 20254312 PMAQI
9th Sep 2025381 PMAQI
9th Sep 2025412 PMAQI
9th Sep 2025433 PMAQI
9th Sep 2025554 PMAQI
9th Sep 2025545 PMAQI
9th Sep 2025466 PMAQI
9th Sep 2025567 PMAQI
9th Sep 2025518 PMAQI
9th Sep 2025539 PMAQI
9th Sep 20255310 PMAQI
9th Sep 20255311 PMAQI
10th Sep 20255412 AMAQI
10th Sep 2025531 AMAQI
10th Sep 2025542 AMAQI
10th Sep 2025523 AMAQI
10th Sep 2025524 AMAQI
10th Sep 2025525 AMAQI
10th Sep 2025526 AMAQI
27°C25/29°C
10th Sep 2025527 AMAQI
10th Sep 2025668 AMAQI
10th Sep 2025649 AMAQI
10th Sep 20256210 AMAQI
10th Sep 20255411 AMAQI
10th Sep 20255712 PMAQI
10th Sep 2025481 PMAQI
10th Sep 2025392 PMAQI
10th Sep 2025473 PMAQI
10th Sep 2025474 PMAQI
10th Sep 2025455 PMAQI
10th Sep 2025466 PMAQI
10th Sep 2025547 PMAQI
10th Sep 2025568 PMAQI
10th Sep 2025549 PMAQI
10th Sep 20255810 PMAQI
10th Sep 20256711 PMAQI
11th Sep 20255412 AMAQI
11th Sep 2025531 AMAQI
11th Sep 2025542 AMAQI
11th Sep 2025543 AMAQI
11th Sep 2025534 AMAQI
11th Sep 2025545 AMAQI
11th Sep 2025546 AMAQI
27°C25/30°C
11th Sep 2025547 AMAQI
11th Sep 2025808 AMAQI
11th Sep 2025659 AMAQI
11th Sep 20256310 AMAQI
11th Sep 20255511 AMAQI
11th Sep 20255812 PMAQI
11th Sep 2025391 PMAQI
11th Sep 2025502 PMAQI
11th Sep 2025383 PMAQI
11th Sep 2025494 PMAQI
11th Sep 2025425 PMAQI
11th Sep 2025396 PMAQI
11th Sep 2025507 PMAQI
11th Sep 2025508 PMAQI
11th Sep 2025519 PMAQI
11th Sep 20255110 PMAQI
11th Sep 20254911 PMAQI
12th Sep 20255312 AMAQI
12th Sep 2025531 AMAQI
12th Sep 2025532 AMAQI
12th Sep 2025543 AMAQI
12th Sep 2025544 AMAQI
12th Sep 2025545 AMAQI
12th Sep 2025556 AMAQI
28°C25/30°C
12th Sep 2025547 AMAQI
12th Sep 2025408 AMAQI
12th Sep 2025449 AMAQI
12th Sep 20255010 AMAQI
12th Sep 20254111 AMAQI
12th Sep 20254412 PMAQI
12th Sep 2025311 PMAQI
12th Sep 2025352 PMAQI
12th Sep 2025273 PMAQI
12th Sep 2025254 PMAQI
12th Sep 2025375 PMAQI
12th Sep 2025446 PMAQI
12th Sep 2025437 PMAQI
12th Sep 2025438 PMAQI
12th Sep 2025419 PMAQI
12th Sep 20255310 PMAQI
12th Sep 20255111 PMAQI
13th Sep 20255112 AMAQI
13th Sep 2025541 AMAQI
13th Sep 2025542 AMAQI
13th Sep 2025523 AMAQI
13th Sep 2025524 AMAQI
13th Sep 2025525 AMAQI
13th Sep 2025526 AMAQI
27°C25/28°C
13th Sep 2025517 AMAQI
13th Sep 2025468 AMAQI
13th Sep 2025419 AMAQI
13th Sep 20255510 AMAQI
13th Sep 20255411 AMAQI
13th Sep 20253912 PMAQI
13th Sep 2025341 PMAQI
13th Sep 2025362 PMAQI
13th Sep 2025353 PMAQI
13th Sep 2025424 PMAQI
13th Sep 2025355 PMAQI
13th Sep 2025406 PMAQI
13th Sep 2025387 PMAQI
13th Sep 2025468 PMAQI
13th Sep 2025489 PMAQI
13th Sep 20254910 PMAQI
13th Sep 20255211 PMAQI
14th Sep 20254912 AMAQI
14th Sep 2025521 AMAQI
14th Sep 2025532 AMAQI
14th Sep 2025513 AMAQI
14th Sep 2025514 AMAQI
14th Sep 2025515 AMAQI
14th Sep 2025516 AMAQI
25°C24/27°C
14th Sep 2025517 AMAQI
14th Sep 2025498 AMAQI
14th Sep 2025409 AMAQI
14th Sep 20255410 AMAQI
14th Sep 20255611 AMAQI
14th Sep 20255112 PMAQI
14th Sep 2025421 PMAQI
14th Sep 2025382 PMAQI
14th Sep 2025443 PMAQI
14th Sep 2025424 PMAQI
14th Sep 2025425 PMAQI
14th Sep 2025466 PMAQI
14th Sep 2025547 PMAQI
14th Sep 2025558 PMAQI
14th Sep 2025579 PMAQI
14th Sep 20255210 PMAQI
14th Sep 20255711 PMAQI
15th Sep 20255412 AMAQI
15th Sep 2025521 AMAQI
15th Sep 2025502 AMAQI
15th Sep 2025523 AMAQI
15th Sep 2025504 AMAQI
15th Sep 2025515 AMAQI
15th Sep 2025526 AMAQI
27°C24/29°C
15th Sep 2025527 AMAQI
15th Sep 2025278 AMAQI
15th Sep 2025419 AMAQI
15th Sep 20253810 AMAQI
15th Sep 20254111 AMAQI
15th Sep 20253012 PMAQI
15th Sep 2025221 PMAQI
15th Sep 2025282 PMAQI
15th Sep 2025353 PMAQI
15th Sep 2025284 PMAQI
15th Sep 2025275 PMAQI
15th Sep 2025356 PMAQI
15th Sep 2025327 PMAQI
15th Sep 2025468 PMAQI
15th Sep 2025549 PMAQI
15th Sep 20254910 PMAQI
15th Sep 20255511 PMAQI
16th Sep 20255412 AMAQI
16th Sep 2025521 AMAQI
16th Sep 2025522 AMAQI
16th Sep 2025513 AMAQI
16th Sep 2025484 AMAQI
16th Sep 2025495 AMAQI
16th Sep 2025476 AMAQI
26°C25/29°C
16th Sep 2025487 AMAQI
16th Sep 2025468 AMAQI
16th Sep 2025429 AMAQI
16th Sep 20254310 AMAQI
16th Sep 20254511 AMAQI
16th Sep 20255012 PMAQI
16th Sep 2025371 PMAQI
16th Sep 2025402 PMAQI
16th Sep 2025443 PMAQI
16th Sep 2025384 PMAQI
16th Sep 2025415 PMAQI
16th Sep 2025386 PMAQI
16th Sep 2025487 PMAQI
16th Sep 2025508 PMAQI
16th Sep 2025479 PMAQI
16th Sep 20254910 PMAQI
16th Sep 20255411 PMAQI
17th Sep 20255012 AMAQI
17th Sep 2025521 AMAQI
17th Sep 2025502 AMAQI
17th Sep 2025503 AMAQI
17th Sep 2025494 AMAQI
17th Sep 2025495 AMAQI
17th Sep 2025506 AMAQI
27°C25/30°C
17th Sep 2025497 AMAQI
17th Sep 2025298 AMAQI
17th Sep 2025399 AMAQI
17th Sep 20253010 AMAQI
17th Sep 20253211 AMAQI
17th Sep 20252812 PMAQI
17th Sep 2025421 PMAQI
17th Sep 2025412 PMAQI
17th Sep 2025453 PMAQI
17th Sep 2025564 PMAQI
17th Sep 2025415 PMAQI
17th Sep 2025366 PMAQI
17th Sep 2025437 PMAQI
17th Sep 2025468 PMAQI
17th Sep 2025429 PMAQI
17th Sep 20254310 PMAQI
17th Sep 20254611 PMAQI
18th Sep 20254612 AMAQI
18th Sep 2025461 AMAQI
18th Sep 2025502 AMAQI
18th Sep 2025493 AMAQI
18th Sep 2025474 AMAQI
18th Sep 2025475 AMAQI
18th Sep 2025476 AMAQI
27°C25/28°C
18th Sep 2025477 AMAQI
18th Sep 2025588 AMAQI
18th Sep 2025669 AMAQI
18th Sep 20257010 AMAQI
18th Sep 20256511 AMAQI
18th Sep 20254712 PMAQI
18th Sep 2025581 PMAQI
18th Sep 2025442 PMAQI
18th Sep 2025513 PMAQI
18th Sep 2025534 PMAQI
18th Sep 2025355 PMAQI
18th Sep 2025436 PMAQI
18th Sep 2025337 PMAQI
18th Sep 2025468 PMAQI
18th Sep 2025489 PMAQI
18th Sep 20255510 PMAQI
18th Sep 20255811 PMAQI
19th Sep 20256012 AMAQI
19th Sep 2025501 AMAQI
19th Sep 2025482 AMAQI
19th Sep 2025493 AMAQI
19th Sep 2025524 AMAQI
19th Sep 2025525 AMAQI
19th Sep 2025526 AMAQI
27°C25/29°C
19th Sep 2025527 AMAQI
19th Sep 2025758 AMAQI
19th Sep 2025839 AMAQI
19th Sep 20258010 AMAQI
19th Sep 20257311 AMAQI
19th Sep 20255112 PMAQI
19th Sep 2025321 PMAQI
19th Sep 2025482 PMAQI
19th Sep 2025483 PMAQI
19th Sep 2025534 PMAQI
19th Sep 2025535 PMAQI
19th Sep 2025546 PMAQI
19th Sep 2025427 PMAQI
19th Sep 2025438 PMAQI
19th Sep 2025369 PMAQI
19th Sep 20254110 PMAQI
19th Sep 20254911 PMAQI
20th Sep 20255212 AMAQI
20th Sep 2025531 AMAQI
20th Sep 2025532 AMAQI
20th Sep 2025543 AMAQI
20th Sep 2025554 AMAQI
20th Sep 2025555 AMAQI
20th Sep 2025556 AMAQI
28°C25/30°C
20th Sep 2025557 AMAQI
20th Sep 2025628 AMAQI
20th Sep 2025709 AMAQI
20th Sep 20256410 AMAQI
20th Sep 20255211 AMAQI
20th Sep 20254912 PMAQI
20th Sep 2025381 PMAQI
20th Sep 2025402 PMAQI
20th Sep 2025393 PMAQI
20th Sep 2025464 PMAQI
20th Sep 2025325 PMAQI
20th Sep 2025376 PMAQI
20th Sep 2025287 PMAQI
20th Sep 2025468 PMAQI
20th Sep 2025439 PMAQI
20th Sep 20254210 PMAQI
20th Sep 20255411 PMAQI
21st Sep 20256012 AMAQI
21st Sep 2025541 AMAQI
21st Sep 2025542 AMAQI
21st Sep 2025543 AMAQI
21st Sep 2025544 AMAQI
21st Sep 2025545 AMAQI
21st Sep 2025546 AMAQI
28°C25/30°C
21st Sep 2025547 AMAQI
21st Sep 2025618 AMAQI
21st Sep 2025629 AMAQI
21st Sep 20255710 AMAQI
21st Sep 20254511 AMAQI
21st Sep 20254912 PMAQI
21st Sep 2025241 PMAQI
21st Sep 2025322 PMAQI
21st Sep 2025303 PMAQI
21st Sep 2025394 PMAQI
21st Sep 2025365 PMAQI
21st Sep 2025386 PMAQI
21st Sep 2025457 PMAQI
21st Sep 2025468 PMAQI
21st Sep 2025489 PMAQI
21st Sep 20255310 PMAQI
21st Sep 20254911 PMAQI
22nd Sep 20254212 AMAQI
22nd Sep 2025521 AMAQI
22nd Sep 2025552 AMAQI
22nd Sep 2025553 AMAQI
22nd Sep 2025544 AMAQI
22nd Sep 2025545 AMAQI
22nd Sep 2025546 AMAQI
28°C25/30°C
22nd Sep 2025547 AMAQI
22nd Sep 2025688 AMAQI
22nd Sep 2025699 AMAQI
22nd Sep 20257010 AMAQI
22nd Sep 20255311 AMAQI
22nd Sep 20255812 PMAQI
22nd Sep 2025521 PMAQI
22nd Sep 2025602 PMAQI
22nd Sep 2025743 PMAQI
22nd Sep 2025314 PMAQI
22nd Sep 2025425 PMAQI
22nd Sep 2025406 PMAQI
22nd Sep 2025287 PMAQI
22nd Sep 2025468 PMAQI
22nd Sep 2025489 PMAQI
22nd Sep 20255010 PMAQI
22nd Sep 20255211 PMAQI
23rd Sep 20254412 AMAQI
23rd Sep 2025511 AMAQI
23rd Sep 2025532 AMAQI
23rd Sep 2025543 AMAQI
23rd Sep 2025554 AMAQI
23rd Sep 2025555 AMAQI
23rd Sep 2025566 AMAQI
28°C26/30°C
23rd Sep 2025567 AMAQI
23rd Sep 2025568 AMAQI
23rd Sep 2025689 AMAQI
23rd Sep 20256210 AMAQI
23rd Sep 20254711 AMAQI
23rd Sep 20253812 PMAQI
23rd Sep 2025501 PMAQI
23rd Sep 2025342 PMAQI
23rd Sep 2025443 PMAQI
23rd Sep 2025344 PMAQI
23rd Sep 2025265 PMAQI
23rd Sep 2025276 PMAQI
23rd Sep 2025367 PMAQI
23rd Sep 2025518 PMAQI
23rd Sep 2025539 PMAQI
23rd Sep 20255610 PMAQI
23rd Sep 20254811 PMAQI
24th Sep 20254812 AMAQI
24th Sep 2025541 AMAQI
24th Sep 2025542 AMAQI
24th Sep 2025533 AMAQI
24th Sep 2025544 AMAQI
24th Sep 2025535 AMAQI
24th Sep 2025536 AMAQI
28°C26/30°C
24th Sep 2025537 AMAQI
24th Sep 2025608 AMAQI
24th Sep 2025539 AMAQI
24th Sep 20255510 AMAQI
24th Sep 20253711 AMAQI
24th Sep 20254012 PMAQI
24th Sep 2025511 PMAQI
24th Sep 2025282 PMAQI
24th Sep 2025343 PMAQI
24th Sep 2025454 PMAQI
24th Sep 2025425 PMAQI
24th Sep 2025486 PMAQI
24th Sep 2025377 PMAQI
24th Sep 2025528 PMAQI
24th Sep 2025569 PMAQI
24th Sep 20256010 PMAQI
24th Sep 20256011 PMAQI
25th Sep 20255812 AMAQI
25th Sep 2025521 AMAQI
25th Sep 2025532 AMAQI
25th Sep 2025533 AMAQI
25th Sep 2025534 AMAQI
25th Sep 2025525 AMAQI
25th Sep 2025536 AMAQI
27°C26/29°C
25th Sep 2025527 AMAQI
25th Sep 2025418 AMAQI
25th Sep 2025379 AMAQI
25th Sep 20253710 AMAQI
25th Sep 20253911 AMAQI
25th Sep 20253712 PMAQI
25th Sep 2025451 PMAQI
25th Sep 2025402 PMAQI
25th Sep 2025363 PMAQI
25th Sep 2025414 PMAQI
25th Sep 2025285 PMAQI
25th Sep 2025246 PMAQI
25th Sep 2025147 PMAQI
25th Sep 2025168 PMAQI
25th Sep 2025249 PMAQI
25th Sep 20253510 PMAQI
25th Sep 20255511 PMAQI
26th Sep 20255512 AMAQI
26th Sep 2025461 AMAQI
26th Sep 2025532 AMAQI
26th Sep 2025603 AMAQI
26th Sep 2025644 AMAQI
26th Sep 2025595 AMAQI
26th Sep 2025386 AMAQI
28°C26/30°C
26th Sep 2025297 AMAQI
26th Sep 2025358 AMAQI
26th Sep 2025459 AMAQI
26th Sep 20254810 AMAQI
26th Sep 20254711 AMAQI
26th Sep 20254512 PMAQI
26th Sep 2025511 PMAQI
26th Sep 2025632 PMAQI
26th Sep 2025603 PMAQI
26th Sep 2025634 PMAQI
26th Sep 2025865 PMAQI
26th Sep 20251026 PMAQI
26th Sep 2025737 PMAQI
26th Sep 2025848 PMAQI
26th Sep 2025739 PMAQI
26th Sep 20256410 PMAQI
26th Sep 20257611 PMAQI
27th Sep 20258612 AMAQI
27th Sep 2025731 AMAQI
27th Sep 2025682 AMAQI
27th Sep 2025643 AMAQI
27th Sep 2025624 AMAQI
27th Sep 2025655 AMAQI
27th Sep 2025726 AMAQI
28°C25/30°C
27th Sep 2025697 AMAQI
27th Sep 2025688 AMAQI
27th Sep 2025659 AMAQI
27th Sep 20253910 AMAQI
27th Sep 20255411 AMAQI
27th Sep 20257912 PMAQI
27th Sep 2025731 PMAQI
27th Sep 2025602 PMAQI
27th Sep 2025603 PMAQI
27th Sep 2025614 PMAQI
27th Sep 2025545 PMAQI
27th Sep 2025576 PMAQI
27th Sep 2025577 PMAQI
27th Sep 2025588 PMAQI
27th Sep 2025629 PMAQI
27th Sep 20256410 PMAQI
27th Sep 20255911 PMAQI
28th Sep 20256012 AMAQI
28th Sep 2025621 AMAQI
28th Sep 2025472 AMAQI
28th Sep 2025423 AMAQI
28th Sep 2025334 AMAQI
28th Sep 2025235 AMAQI
28th Sep 2025276 AMAQI
28°C26/31°C
28th Sep 2025287 AMAQI
28th Sep 2025288 AMAQI
28th Sep 2025289 AMAQI
28th Sep 20253110 AMAQI
28th Sep 20252311 AMAQI
28th Sep 20252812 PMAQI
28th Sep 2025241 PMAQI
28th Sep 2025222 PMAQI
28th Sep 2025233 PMAQI
28th Sep 2025284 PMAQI
28th Sep 2025305 PMAQI
28th Sep 2025356 PMAQI
28th Sep 2025397 PMAQI
28th Sep 2025488 PMAQI
28th Sep 2025539 PMAQI
28th Sep 20255110 PMAQI
28th Sep 20255411 PMAQI
29th Sep 20255812 AMAQI
29th Sep 2025601 AMAQI
29th Sep 2025472 AMAQI
29th Sep 2025393 AMAQI
29th Sep 2025484 AMAQI
29th Sep 2025415 AMAQI
29th Sep 2025196 AMAQI
27°C26/28°C
29th Sep 2025327 AMAQI
29th Sep 2025398 AMAQI
29th Sep 2025259 AMAQI
29th Sep 20251510 AMAQI
29th Sep 20253311 AMAQI
29th Sep 20252612 PMAQI
29th Sep 2025261 PMAQI
29th Sep 2025222 PMAQI
29th Sep 2025303 PMAQI
29th Sep 2025244 PMAQI
29th Sep 2025355 PMAQI
29th Sep 2025266 PMAQI
29th Sep 2025267 PMAQI
29th Sep 2025238 PMAQI
29th Sep 2025289 PMAQI
29th Sep 20254010 PMAQI
29th Sep 20254511 PMAQI
30th Sep 20253812 AMAQI
30th Sep 2025501 AMAQI
30th Sep 2025472 AMAQI
30th Sep 2025473 AMAQI
30th Sep 2025444 AMAQI
30th Sep 2025395 AMAQI
30th Sep 2025456 AMAQI
25°C25/26°C
30th Sep 2025527 AMAQI
7 AM30th Sep 2025618 AMAQI
30th Sep 2025609 AMAQI
30th Sep 20256010 AMAQI
30th Sep 20255911 AMAQI
30th Sep 20256512 PMAQI
30th Sep 2025501 PMAQI
1 PM30th Sep 2025462 PMAQI
30th Sep 2025563 PMAQI
7 PM
1 AM
6 AM
--°C/°C
Day time
Avg. Highest Time
7 AM - 10 AM
52AQI
4 hours / Day
120 hours / Month
Avg. Lowest Time
2 PM
42AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 7 AM to 10 AM (Avg. 52), while the lowest AQI was between 2 PM to 2 PM (Avg. 42).
Night time
Avg. Highest Time
12 AM - 6 AM
53AQI
7 hours / Day
210 hours / Month
Avg. Lowest Time
8 PM
48AQI
1 hours / Day
30 hours / Month
In the last 30 days, during the daytime, the highest AQI was between 12 AM to 6 AM (Avg. 53), while the lowest AQI was between 8 PM to 8 PM (Avg. 48).
2025 Days Vs Air Quality
Butterworth, Pulau Pinang, Malaysia
2025
38%
102
63%
170
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Good
102 DaysModerate
170 DaysPoor
0 DaysUnhealthy
0 DaysSevere
0 DaysHazardous
0 DaysUnder WHO’s Safe Air Quality Limits: 38%
Health Risk Level:
High
In 2025, 38% of 273 days were within WHO’s safe air quality limits. The risk of health issues is High, with respiratory problems, heart disease, skin issues, and stress being more common, particularly among children and the elderly.
Annual Air Quality Insights
Butterworth, Pulau Pinang, Malaysia
AQI levels in 2025
AQI
PM2.5
PM10
CO
SO2
NO2
O3
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
-1th undefined 2025
-1th undefined 2025
-1th undefined 2025
1st January 2025
57AQI
57AQI
2nd January 2025
58AQI
58AQI
3rd January 2025
58AQI
58AQI
4th January 2025
58AQI
58AQI
5th January 2025
58AQI
58AQI
6th January 2025
57AQI
57AQI
7th January 2025
57AQI
57AQI
8th January 2025
57AQI
57AQI
9th January 2025
57AQI
57AQI
10th January 2025
56AQI
56AQI
11th January 2025
57AQI
57AQI
12th January 2025
55AQI
55AQI
13th January 2025
56AQI
56AQI
14th January 2025
56AQI
56AQI
15th January 2025
57AQI
57AQI
16th January 2025
57AQI
57AQI
17th January 2025
56AQI
56AQI
18th January 2025
57AQI
57AQI
19th January 2025
58AQI
58AQI
20th January 2025
58AQI
58AQI
21st January 2025
59AQI
59AQI
22nd January 2025
60AQI
60AQI
23rd January 2025
60AQI
60AQI
24th January 2025
60AQI
60AQI
25th January 2025
62AQI
62AQI
26th January 2025
63AQI
63AQI
27th January 2025
62AQI
62AQI
28th January 2025
62AQI
62AQI
29th January 2025
61AQI
61AQI
30th January 2025
61AQI
61AQI
31st January 2025
61AQI
61AQI
1st February 2025
62AQI
62AQI
2nd February 2025
63AQI
63AQI
3rd February 2025
64AQI
64AQI
4th February 2025
64AQI
64AQI
5th February 2025
65AQI
65AQI
6th February 2025
68AQI
68AQI
7th February 2025
69AQI
69AQI
8th February 2025
69AQI
69AQI
9th February 2025
69AQI
69AQI
10th February 2025
68AQI
68AQI
11th February 2025
69AQI
69AQI
12th February 2025
68AQI
68AQI
13th February 2025
69AQI
69AQI
14th February 2025
68AQI
68AQI
15th February 2025
69AQI
69AQI
16th February 2025
68AQI
68AQI
17th February 2025
67AQI
67AQI
18th February 2025
67AQI
67AQI
19th February 2025
65AQI
65AQI
20th February 2025
64AQI
64AQI
21st February 2025
63AQI
63AQI
22nd February 2025
62AQI
62AQI
23rd February 2025
61AQI
61AQI
24th February 2025
61AQI
61AQI
25th February 2025
60AQI
60AQI
26th February 2025
59AQI
59AQI
27th February 2025
58AQI
58AQI
28th February 2025
58AQI
58AQI
1st March 2025
58AQI
58AQI
2nd March 2025
58AQI
58AQI
3rd March 2025
58AQI
58AQI
4th March 2025
57AQI
57AQI
5th March 2025
57AQI
57AQI
6th March 2025
57AQI
57AQI
7th March 2025
56AQI
56AQI
8th March 2025
55AQI
55AQI
9th March 2025
55AQI
55AQI
10th March 2025
54AQI
54AQI
11th March 2025
54AQI
54AQI
12th March 2025
54AQI
54AQI
13th March 2025
54AQI
54AQI
14th March 2025
53AQI
53AQI
15th March 2025
52AQI
52AQI
16th March 2025
52AQI
52AQI
17th March 2025
51AQI
51AQI
18th March 2025
51AQI
51AQI
19th March 2025
52AQI
52AQI
20th March 2025
53AQI
53AQI
21st March 2025
53AQI
53AQI
22nd March 2025
55AQI
55AQI
23rd March 2025
55AQI
55AQI
24th March 2025
56AQI
56AQI
25th March 2025
57AQI
57AQI
26th March 2025
57AQI
57AQI
27th March 2025
58AQI
58AQI
28th March 2025
59AQI
59AQI
29th March 2025
59AQI
59AQI
30th March 2025
60AQI
60AQI
31st March 2025
59AQI
59AQI
1st April 2025
58AQI
58AQI
2nd April 2025
57AQI
57AQI
3rd April 2025
56AQI
56AQI
4th April 2025
56AQI
56AQI
5th April 2025
55AQI
55AQI
6th April 2025
54AQI
54AQI
7th April 2025
53AQI
53AQI
8th April 2025
53AQI
53AQI
9th April 2025
53AQI
53AQI
10th April 2025
52AQI
52AQI
11th April 2025
52AQI
52AQI
12th April 2025
52AQI
52AQI
13th April 2025
51AQI
51AQI
14th April 2025
51AQI
51AQI
15th April 2025
49AQI
49AQI
16th April 2025
49AQI
49AQI
17th April 2025
50AQI
50AQI
18th April 2025
49AQI
49AQI
19th April 2025
49AQI
49AQI
20th April 2025
49AQI
49AQI
21st April 2025
50AQI
50AQI
22nd April 2025
50AQI
50AQI
23rd April 2025
50AQI
50AQI
24th April 2025
49AQI
49AQI
25th April 2025
49AQI
49AQI
26th April 2025
48AQI
48AQI
27th April 2025
48AQI
48AQI
28th April 2025
48AQI
48AQI
29th April 2025
48AQI
48AQI
30th April 2025
48AQI
48AQI
1st May 2025
48AQI
48AQI
2nd May 2025
47AQI
47AQI
3rd May 2025
45AQI
45AQI
4th May 2025
47AQI
47AQI
5th May 2025
48AQI
48AQI
6th May 2025
50AQI
50AQI
7th May 2025
50AQI
50AQI
8th May 2025
53AQI
53AQI
9th May 2025
52AQI
52AQI
10th May 2025
52AQI
52AQI
11th May 2025
52AQI
52AQI
12th May 2025
50AQI
50AQI
13th May 2025
48AQI
48AQI
14th May 2025
50AQI
50AQI
15th May 2025
51AQI
51AQI
16th May 2025
53AQI
53AQI
17th May 2025
54AQI
54AQI
18th May 2025
53AQI
53AQI
19th May 2025
52AQI
52AQI
20th May 2025
52AQI
52AQI
21st May 2025
51AQI
51AQI
22nd May 2025
51AQI
51AQI
23rd May 2025
49AQI
49AQI
24th May 2025
47AQI
47AQI
25th May 2025
44AQI
44AQI
26th May 2025
41AQI
41AQI
27th May 2025
41AQI
41AQI
28th May 2025
44AQI
44AQI
29th May 2025
45AQI
45AQI
30th May 2025
47AQI
47AQI
31st May 2025
51AQI
51AQI
1st June 2025
52AQI
52AQI
2nd June 2025
52AQI
52AQI
3rd June 2025
52AQI
52AQI
4th June 2025
51AQI
51AQI
5th June 2025
51AQI
51AQI
6th June 2025
51AQI
51AQI
7th June 2025
49AQI
49AQI
8th June 2025
44AQI
44AQI
9th June 2025
45AQI
45AQI
10th June 2025
45AQI
45AQI
11th June 2025
44AQI
44AQI
12th June 2025
46AQI
46AQI
13th June 2025
48AQI
48AQI
14th June 2025
50AQI
50AQI
15th June 2025
49AQI
49AQI
16th June 2025
50AQI
50AQI
17th June 2025
48AQI
48AQI
18th June 2025
46AQI
46AQI
19th June 2025
44AQI
44AQI
20th June 2025
42AQI
42AQI
21st June 2025
41AQI
41AQI
22nd June 2025
38AQI
38AQI
23rd June 2025
38AQI
38AQI
24th June 2025
37AQI
37AQI
25th June 2025
37AQI
37AQI
26th June 2025
38AQI
38AQI
27th June 2025
39AQI
39AQI
28th June 2025
42AQI
42AQI
29th June 2025
43AQI
43AQI
30th June 2025
44AQI
44AQI
1st July 2025
45AQI
45AQI
2nd July 2025
44AQI
44AQI
3rd July 2025
45AQI
45AQI
4th July 2025
45AQI
45AQI
5th July 2025
45AQI
45AQI
6th July 2025
44AQI
44AQI
7th July 2025
45AQI
45AQI
8th July 2025
45AQI
45AQI
9th July 2025
44AQI
44AQI
10th July 2025
45AQI
45AQI
11th July 2025
44AQI
44AQI
12th July 2025
44AQI
44AQI
13th July 2025
45AQI
45AQI
14th July 2025
45AQI
45AQI
15th July 2025
45AQI
45AQI
16th July 2025
45AQI
45AQI
17th July 2025
47AQI
47AQI
18th July 2025
47AQI
47AQI
19th July 2025
48AQI
48AQI
20th July 2025
49AQI
49AQI
21st July 2025
49AQI
49AQI
22nd July 2025
49AQI
49AQI
23rd July 2025
50AQI
50AQI
24th July 2025
50AQI
50AQI
25th July 2025
51AQI
51AQI
26th July 2025
51AQI
51AQI
27th July 2025
52AQI
52AQI
28th July 2025
52AQI
52AQI
29th July 2025
53AQI
53AQI
30th July 2025
53AQI
53AQI
31st July 2025
53AQI
53AQI
1st August 2025
54AQI
54AQI
2nd August 2025
54AQI
54AQI
3rd August 2025
60AQI
60AQI
4th August 2025
58AQI
58AQI
5th August 2025
53AQI
53AQI
6th August 2025
59AQI
59AQI
7th August 2025
64AQI
64AQI
8th August 2025
65AQI
65AQI
9th August 2025
61AQI
61AQI
10th August 2025
50AQI
50AQI
11th August 2025
50AQI
50AQI
12th August 2025
49AQI
49AQI
13th August 2025
52AQI
52AQI
14th August 2025
54AQI
54AQI
15th August 2025
52AQI
52AQI
16th August 2025
57AQI
57AQI
17th August 2025
60AQI
60AQI
18th August 2025
63AQI
63AQI
19th August 2025
63AQI
63AQI
20th August 2025
59AQI
59AQI
21st August 2025
60AQI
60AQI
22nd August 2025
65AQI
65AQI
23rd August 2025
56AQI
56AQI
24th August 2025
52AQI
52AQI
25th August 2025
57AQI
57AQI
26th August 2025
59AQI
59AQI
27th August 2025
66AQI
66AQI
28th August 2025
54AQI
54AQI
29th August 2025
57AQI
57AQI
30th August 2025
53AQI
53AQI
31st August 2025
55AQI
55AQI
1st September 2025
53AQI
53AQI
2nd September 2025
52AQI
52AQI
3rd September 2025
51AQI
51AQI
4th September 2025
45AQI
45AQI
5th September 2025
43AQI
43AQI
6th September 2025
51AQI
51AQI
7th September 2025
52AQI
52AQI
8th September 2025
57AQI
57AQI
9th September 2025
50AQI
50AQI
10th September 2025
54AQI
54AQI
11th September 2025
52AQI
52AQI
12th September 2025
46AQI
46AQI
13th September 2025
47AQI
47AQI
14th September 2025
50AQI
50AQI
15th September 2025
43AQI
43AQI
16th September 2025
47AQI
47AQI
17th September 2025
44AQI
44AQI
18th September 2025
50AQI
50AQI
19th September 2025
52AQI
52AQI
20th September 2025
48AQI
48AQI
21st September 2025
48AQI
48AQI
22nd September 2025
52AQI
52AQI
23rd September 2025
48AQI
48AQI
24th September 2025
50AQI
50AQI
25th September 2025
39AQI
39AQI
26th September 2025
63AQI
63AQI
27th September 2025
67AQI
67AQI
28th September 2025
41AQI
41AQI
29th September 2025
45AQI
45AQI
30th September 2025
1st October 2025
2nd October 2025
3rd October 2025
4th October 2025
5th October 2025
6th October 2025
7th October 2025
8th October 2025
9th October 2025
10th October 2025
11th October 2025
12th October 2025
13th October 2025
14th October 2025
15th October 2025
16th October 2025
17th October 2025
18th October 2025
19th October 2025
20th October 2025
21st October 2025
22nd October 2025
23rd October 2025
24th October 2025
25th October 2025
26th October 2025
27th October 2025
28th October 2025
29th October 2025
30th October 2025
31st October 2025
1st November 2025
2nd November 2025
3rd November 2025
4th November 2025
5th November 2025
6th November 2025
7th November 2025
8th November 2025
9th November 2025
10th November 2025
11th November 2025
12th November 2025
13th November 2025
14th November 2025
15th November 2025
16th November 2025
17th November 2025
18th November 2025
19th November 2025
20th November 2025
21st November 2025
22nd November 2025
23rd November 2025
24th November 2025
25th November 2025
26th November 2025
27th November 2025
28th November 2025
29th November 2025
30th November 2025
1st December 2025
2nd December 2025
3rd December 2025
4th December 2025
5th December 2025
6th December 2025
7th December 2025
8th December 2025
9th December 2025
10th December 2025
11th December 2025
12th December 2025
13th December 2025
14th December 2025
15th December 2025
16th December 2025
17th December 2025
18th December 2025
19th December 2025
20th December 2025
21st December 2025
22nd December 2025
23rd December 2025
24th December 2025
25th December 2025
26th December 2025
27th December 2025
28th December 2025
29th December 2025
30th December 2025
31st December 2025
58AQI
65AQI
55AQI
51AQI
49AQI
45AQI
47AQI
57AQI
50AQI
No. of days
Jan.Feb.Mar.Apr.MayJun.Jul.Aug.Sep.Oct.Nov.Dec.Total Days
202553AQI
31
28
31
16
14
18
13
24
6
24
7
3
28
17
12
102
170
Highest AQI recorded in
February65AQI
Lowest AQI recorded in
June45AQI
202423AQI
30
28
30
30
21
9
2
28
3
28
26
5
30
30
1
22
8
31
252
110
Highest AQI recorded in
June56AQI
Lowest AQI recorded in
September0AQI
20230AQI
17
31
30
30
29
31
31
30
31
28
30
318
Highest AQI recorded in
February0AQI
Lowest AQI recorded in
December0AQI
20220AQI
25
22
31
30
31
30
24
2
25
30
21
271
Highest AQI recorded in
January0AQI
Lowest AQI recorded in
November0AQI
202123AQI
5
26
28
28
11
19
15
4
30
31
22
21
30
28
20
213
105
Highest AQI recorded in
February63AQI
Lowest AQI recorded in
December0AQI
202056AQI
12
5
16
8
10
6
24
4
27
1
30
5
23
13
18
14
16
12
19
68
195
Highest AQI recorded in
August69AQI
Lowest AQI recorded in
May48AQI
Most & Least Polluted Years Over the Last 6 Years
Most Polluted Year Recorded
2020(Avg.)
56AQILeast Polluted Year Recorded
2022(Avg.)
0AQIButterworth's annual 2025 AQI (53) shows an average percentage change of 91.4% (worsened AQI) compared to previous years: 2020 (56), 2021 (23), 2022 (0), 2023 (0), 2024 (23).
